Deferimento
#9.1
10/24/1989
RPI 992
Application data
Number
PI8305417Type
Filing
Publication
The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 10/24/1989. We update with every new RPI gazette, published weekly.
Applicants
L'Air Liquide, Societe Anonyme Four L'Etude et L'Rxploitation des Procedes georges Claude
FR
Inventors
M. G. (pessoa física)
R. F. (pessoa física)
S. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#9.1
10/24/1989
RPI 992
#6.1
05/02/1989
RPI 967
03/04/1987
RPI 854
#4.1
07/29/1986
RPI 823
#3.1
05/15/1984
RPI 708
#2.1
12/13/1983
RPI 686
#21.1
Patente extinta em 30/09/98
07/01/2008
RPI 1956
#16.1
05/29/1990
RPI 1020
#13.1
03/01/1990
RPI 1007
Same category
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